Suggests a long-term strategy of befriending someone and waiting for a rival's relationship to fail, rather than direct courtship.
"I think a much better approach is to, sort of, do them small favors, and then slowly befriend them over the course of the next few years, and then when she develops feelings for someone else, just hope that it doesn't work out, and then she'll see that you're the one that she actually liked the whole time."